Made of: A mixture of fine resin particles.
Used for: Small and large fillings located on both front and back teeth.
Longevity: On average, may last five years, depending on how you maintain your teeth. Often lasts much longer.
Costs: More than amalgam filling.
Made of: A mixture of silver, tin, zinc, copper and mercury. Mercury is nearly 50% of the mixture.
Used for: Fillings on back teeth.
Longevity: On average, last 5 years, usually longer.
Costs: The least expensive type of restorative material.